The devastated singer, who tweeted afterwards that she was ‘broken’, is believed to have cancelled her concert in London this Thursday.
According to TMZ, scheduled performances in Belgium, Poland, Germany and Switzerland have also been put on hold.
The suspected terror attack happened at the end of her three hour long gig at the Manchester Arena just as everyone was leaving to go home and the singer had left the stage.
Children were reportedly killed in the blast, which injured 59 people.
The first victim has been named as Georgina Callander, a 16-year-old teenager.
The singer wrote on Twitter afterwards: ‘Broken. From the bottom of my heart, I am so so sorry. I don’t have words.’
Grande’s manager Scooter Braun said in a statement: ‘We mourn the lives of children and loved ones taken by this cowardly act…. We ask all of you to hold the victims, their families, and all those affected in your hearts and prayers.’
Harry Styles, Nicki Minaj, Katy Perry and Taylor Swift have paid tribute to the victims of the attack.
Greater Manchester Police have said they are currently treating the situation as a ‘terrorist incident’ and confirmed the attack was carried out by a man acting alone.
The bomber was killed at the scene after detonating an improvised explosive device.
Witnesses reported hearing a ‘huge bomb-like bang’ at around 10.30pm on Monday night as fans were exiting the arena.
Manchester Arena, which has a capacity of 21,000, is the second biggest indoor arena in Europe.